Power pump



HAWEZG G. c. MYERS Oct. 30, 1923.

POWER PUMP s Sheets-Sheet 1 Filed Dec. 19. 1921 Get. 30 1923.

G. C. MYERS POWER PUMP Filed Dec. 19 3 Sheets-Sheet 5 m&

' erence being 2 drawing ofi"such small Patented Oct. 30, V1923.

T1 NlTED STATES Gq'Y C. MYERS, OF ASHLAND, OHIO, ASS

IGNOR T O THE F. E. MYERS & BROTHER CORI- PANY, F ASHLAND, OHIO, A CORPORATION OF OHIO.

non EPWBEP.

Application filed December 19, 1921. Serial No. 523,480.

To all whom it may concern:

Be it known that I, GUY C. Mme, citizen of the United States, residing Ashland,

.in the county of Ashland and State of ,Ohio, have inventedcertain new and useful Improvements in Power Pumps, of which the following is a specification, refhad therein to the accompanyin %'his invention relates to improvements in power pumps, particularly to self-oiling power pumps in which the pump operating mechanism is enclosed in a casing which contains lubricant.

The particular object I have in view is to provide means. pump proper selectively by power and by hand. In cases where but a small quantity of water is to be drawn fromthe pump it is not desirable to start the motor which is used to drive the pump operating mechanism. In such cases it is very desirable and useful to be able to'convertthe pump into a hand operated "one for the pur ose of quantities 0 water, and then to readily restore it'to a condition for power operation. "It is' also important to be able to hand-operate the pump ;in cases of eniergencypas when the motor breaks down -or is temporarily inoperable.

With these ends in view my invention consists, essentially, incombining the cross head of the piston rod with both power driven and hand driven operating mecha- 85 nism,with adaptability to disconnect one of these mechanisms when the other is to be A further obje'ctbof my invention is to etachably connect such cross head with a power-operative mechanism. and to detach ably connect it with a hand operative mechanism, a removable connect ng pin between thecross head and the power driven mechanism and a removable gear: segment adapted to mesh with rack teethin the cross head being the preferredjjinstrumentalities by which this object is intopriactical efi'ect p In. the accompanying drawings:

Fi'g. lis a perspective view of a combined ump and power head comprising what is own as a power pump ments applied thereto;

Fig. 2 is a vertical sectional view on an i enlarged scale of the operating mechanism at k .for readily operating the with my improveand of the cross head and a. part of the of a part of the drivin Fig. 5 is a horizontal P ey sectional view of the part shown in Fig. 2, the section being taken I on the line 5-5 of said'figure;

Fig. 6 is atransver'se sectional View taken on the line 6-6 of Fig. 5. My assignee, The F. E.

(30., are manufacturers of power pumps of 'the character to which my invention is applied. .Such a pump is shown in its entiretv 1n F1g. 1, with my improvements added thereto. Generally speaking such pump consists of a pump proper designated at -1 comprising the usual cylinder 2, piston rod 3 with its piston (not necessary to show), its valves indicated at 4:, its water chamber indicated at 5 with its water discharge 6 and an air chamber 7.

And such pump further consists of a base 8 on which is mounted the pump structure at one end and a casing 9 at the other end. The casing forms an interior chamber for containing a lubricant, such as oil, and for containing the power drivenoperating mechanism consisting-of a driven gear wheel 10 mounted on a shaft 11 having bear- Myers & Brother ings in the side walls of the casing, as best seen in Fig.5, and of an eccentric 12, usually fashioned on and forming a part of the gear wheel 10 the eccentric having the usual eccentric band 13 and connected pitman 14 for operating the pump piston rod 3. The base portion 8 of the structure includes a hollow body portion 15 within which are formed ways 16 on which travels a cross, headil7 connected with the pump piston 3 and with the pitman 4t by a removable cou pli ng'p'in 18 with a bearing sleeve 19. This pin is insertable through the cross head and the pitmamand removable'therefrom so as to connect the power driven mechanism with the pump piston or to disconnect it. To permitgof this manipulation'of the coupling pin portion 15 of the structure is con structe with an opening 20in the naturof a slot substantially equal in length to the stroke of the (moss head so that the coupling, pin may be removed or inserted at what ever point the cross head may be within of its travel. To c ose o open he slot 20 a hinged T- casing with a pinion 24 which meshes with *sis and transmits motion to the gear 10 and on the outside with a pair of belt pulleys, a fixed pulley 25 and a loose pulley 26. A power driven belt applied to these pulleys will operate the driving shaft or not as it may be placed on the tight or loosepulley.

In this way the pump is power driven. But to also drive the pump by hand, as is often desirable, when small quantities of water are to be delivered", I further equip,

the pump with flanges 27 cast with or extending from the base 15 and adapted to support a pivot pin 28 and to receive between them a gear segment 29- with which I isconnecteda handle or leverBO.

The cross head is constructed with rack teeth 31 with which meshes the toothed segment 29 so that when the handle 30 is worked back and forth on the pivot 28 the segment operating in the rack will reciprocate the cros head and operate the pump piston .3 by hand.

. The pump is so equipped in manufacture and goes out on the market in this form. When in use .and to be driven by power the pivot pin '28 is withdrawn and the handle and segment removed and a cover plate 32 applied over the flanges 27 to close the opening in which the segment works when in place. In this form the-interior mechanism {is entirely. enclosed while being power driven. I

To operate the ump by hand, as when small quantities; o water are to be drawn,

the door 21' is opened, the couplin pin 18 removed, the cover plate 32 lifted o handle and segment remounted within the flanges 27 by the'insertion of the pin 28. In this'form the. pump may be readily op erated by hand. 7

Thus it will be seen thatby. disconnecting I j from the piston rod the-power mechanism it may be handfoperated and by disconnecting from it the hand operative. mechanism it may] be power operated. Ofcourse, it may .be .power operated without removing 'thesegment 29' and the handle'30, but to prevent rocking and shaking them their and theremoval is preferred. In some instances I prefer to removably secure the handle 30 in the socket portion 30 of the segment, as by using a screw-threaded connection. In such cases, I may remove the handle but allow the segment to remain. I prefer, however, to entirely remove the segment and ,to close the opening by the cover plate 32.

In commercial use a pump so organizedand constructed has proved to be useful, convenient and highly satisfactory to the users.

- Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is 2- the combination with a base, a pump at one end comprising a cylinder, a piston and a piston rod extending into the base, a gear casing at the other end adapted with the base to contain a lubricant, a driving pinion and a driven gear in said casing, operated by the driven gear, a cross head operable in the base and detachably connected to the pitman, and a handle adapted to operate the cross head and detachably mounted, whereby the cross head may be operated either by the pitman or by the handle.

2. In a pump of the character described, a base, a cross head mounted therein, a pitman detachably connected to the cross head, a handle adapted to operatethe cross a pitman head and detachably mounted, the base.

having an opening through which to insert or remove the connection between the cross head and the pitman and another opening for the insertion and removal of the portion flanges, a handle and toothed segment, the

latter adapted to enter said opening, a removable pin adapted to extend through thesegment and said flanges and a removable cover adapted to fit over said flanges to close 'the opening when the pin, handle and segment are removed.

.In testimony whereof, I aflix my signature.

Y our 0. MYERS. 

